Bitcoin Core 0.19.0 released
The main client of the Bitcoin network has been updated, all owners of full nodes can update the software. Linux, macOS and Windows 7 are supported, but for mac you need a version higher than 10.10, and for Windows higher than 7.
The main innovations are the use of bech32 format addresses by default and disabling the protocol BIP70. Most BTC services have long moved to new addresses and the BIP21 protocol. Only the popular BitPay provider is still running on the BIP70 and problems may arise when working with it.